To 400 g of a 10% salt solution was added 50 g of the same salt. What is the mass fraction of salt (in%) in the resulting solution?
May 28, 2020 | Education|
ω = m (substance) / m (solution)
Find the mass of salt m = 400 * 0.1 + 50 = 90 g
Find the mass of the final solution = 400 + 50 = 450 g
ω = m (substance) / m (solution) = 90 * 100/450 = 20%
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